It's been a while since we've heard anything about memory maker Rambus, but the company has come back into the light to sue Nvidia for patent infringement. Rambus thinks that Nvidia's use of SDR, DDR, DDR2, DDR3, GDDR, and GDDR3 SDRAM in their products violates 17 (count 'em... 17!) patents that Rambus owns. Those chips sit inside all sorts of Nvidia gear, and apparently Rambus has been trying for a settlement for years. Now it's using the legal system to claim cash for the damages. Bad news for Nvidia, but Rambus is still apparently trying "to continue discussions with Nvidia to reach a negotiated settlement." I bet. [BusinessWire]